States of Matter MCQ Questions and Answers for Practice

1. A real gas

1. does not obey all the assumptions of the kinetic-molecular theory.
2. consists of particles that do not occupy space.
3. cannot be condensed.
4. cannot be produced in scientific laboratories.

2. A solid forms when the average energy of a substances particles

1. increases.
2. decreases.
3. decreases then increases.
4. creates a random arrangement.

3. According to the kinetic-molecular theory, how does a gas expand?

1. Its particles become larger.
2. Collisions between particles become elastic.
3. Its temperature rises.
4. Its particles move greater distances.

4. According to the kinetic-molecular theory, particles of an ideal gas

1. attract each other but do not collide.
2. repel each other and collide.
3. neither attract nor repel each other but collide.
4. neither attract nor repel each other and do not collide.

5. According to the kinetic-molecular theory, particles of matter

1. are in constant motion.
2. have different shapes.
3. have different colors.
4. are always fluid.

6. According to the kinetic-molecular theory, particles of matter are in motion in

1. gases only.
2. gases and liquids only.
3. solids, liquids, and gases.
4. solids only.

7. According to the kinetic-molecular theory, which substances are made of particles?

1. gases only
2. liquids only
3. all matter
4. all matter except solids

8. An ideal gas is a hypothetical gas

1. not made of particles.
2. that conforms to all of the assumptions of the kinetic theory.
3. whose particles have zero mass.
4. made of motionless particles.

9. Any sample of matter has mass and takes up space. The main reason for this is because:

1. All matter is heavy
2. Matter can be a gas
3. Matter is made up of tiny particles that have mass and take up space
4. The Earth is made of matter

10. At pressures greater than 1 atm, water will boil at

1. a temperature higher than 100 degree Celcius.
2. a temperature lower than 100 degree Celcius.
3. 100 degree Celcius.
4. 4 degree Celcius.

11. By which process do gases take the shape of their container?

1. evaporation
2. expansion
3. adhesion
4. diffusion

12. During the process of freezing, a liquid

1. loses kinetic energy.
2. loses potential energy.
3. gains potential energy.
4. gains kinetic energy.

13. Food coloring spreads out faster in hot water than in cold water. This is mainly because:

1. The water molecules in hot water move more quickly
2. The molecules in hot water are larger
3. The food coloring molecules are small
4. Hot water is less dense

14. If the rate of evaporation from the surface of a liquid exceeds the rate of condensation,

1. the system is in equilibrium.
2. the liquid is boiling.
3. energy as heat is no longer available.
4. the concentration of the vapor is increasing.

15. If you put food coloring in room temperature water, the coloring spreads throughout the water. The water causes the color to spread mainly because:

1. Water molecules are warm
2. Water molecules are in motion
3. Water is more dense than food coloring
4. Food coloring molecules are small